Presentations by Anne Brehant
Matches: 6
Membrane Characterization by Optical Methods
These optical and microscopic techniques combined with others such as chemical observation of surface (FTIR), or hydraulic-dynamic tests (filtration tests, molecules or micro-organisms retention) can help to improve the understanding of fouling and/or ageing phenomena occurring during drinking water production in order to manage and minimize them....
How to make a black box talk? A review of 50 low-pressure membrane autopsies
This paper looks at the results of autopsying 50 MF/UF modules received from facilities around the world treating water for different applications.The gathered data show that most of the time, the autopsy succeeds in drawing up a cause and effect scenario explaining the observations recorded on sites. The reasons for production loss and integrity f...
How to Best Extend the Membranes Lifetime? A Modules Management Strategy that Leverages 25 Years of Experience in Operating Membranes Facilities
The paper gathers the best practices of 25 years of experience in operating MF/UF membrane facilities and is based on an overview of 10 water treatment plants equipped with different membrane technologies of different generations. The paper notes the three key stages when the MF/UF system has to be secured: project design phase, day-to-day operati...
What is the Real Total Cost of Ownership of a Low-Pressure Membrane Plant for Drinking Water Production? Comparing 3 Materials: PVDF, PES and CTA
A comparison of Ultrafiltration (UF) and Microfiltration (MF) full scale plants in operation greater than 6 years are evaluated for membranes made with PVDF, PES and CTA. Market share, capital cost and operating costs are reviewed. Conclusions are drawn on best membranes for capital cost and operating cost....
Impact of organic matter on fouling propensity of a new ultrafiltration membrane with low adhesive surface - a study based on 10 different waters
Ultrafiltration (UF) membranes are widely used to treat surface water due to their capacity to remove colloids, particles, pathogens and virus. Today, they are also applied for reverse osmosis pre-treatment of wastewater reuse and desalination in order to address the problem of water shortage. However, membrane fouling by organic matter remains a k...
A Simple and Reliable Lab Tool to Anticipate Risks of UF Membrane Abrasion at Full-Scale
A new method for direct measurement of the abrasion propensity of UF membranes used in water treatment plants was developed. Standard conditions were determined to obtain a rapid response....